repetitive form fields

[dms]

I'm having trouble capturing the values from a form. I need to both; echo and send emails.

[dms]

<?php
$senders_email = $_GET['senders_email'];
$email='';
$n='';

if (!isset($_GET['submit'])) { $output_form = true; }
/* .....................................................................FORM STARTS HERE */
if ($output_form = true){

?>

PartyTime.... Complete the form to send invitations.

My email address:

Type a name and email for each invitation to send.

Email

<?php
}
/* ......................................................................................FORM ENDS */
?><?php

/* === this is where I'm lost. I can not capture the values, whether to echo or mail. === */
if ((!empty($senders_email)) && (isset($_GET['submit']))){

for ($n=1; $n<=10; $n++) {
$email. $n=$_GET["email$n"];
$temp='email$n';
echo $$temp. '
';
}
}
?>